My slight trace of ammonia, after 4 days of waiting it out and changing the water, is now completely gone, but nitrate is present. I cleaned my filters out so I don't know what else to do....
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It's a natural part of the Nitrogen cycle. Ammonia to Nitrite to Nitrate. Just be patient and wait it out. Cleaning your filters is a good place to start, just keep doing it every week or so from now on.